RUKO SPB-DIN338-9.5mm-HSSCo Twist Drill Bit, 9.5 mm, HSS-Co 5%, DIN 338, Split Point

The RUKO SPB-DIN338-9.5mm-HSSCo is a fully ground twist drill bit engineered for high-performance drilling in tough materials. Its 5% cobalt alloyed high-speed steel provides excellent heat resistance and wear resistance, making it a dependable choice for professional applications where standard HSS bits fall short.

Highlights

• DIN 338 standard dimensions with cylindrical shank
• 135° split point for precise centering and reduced thrust
• Bright finish, right-hand cutting, h8 tolerance
• Suitable for alloyed and unalloyed steel, stainless steel, cast iron, non-ferrous metals, and plastics

In daily use

This drill bit delivers clean, accurate holes in demanding materials. The split point geometry minimizes walking and allows fast chip removal, while the cobalt alloy maintains hardness even at elevated temperatures. Ideal for workshops, maintenance, and metalworking tasks.

Full specifications

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: HSS-Co (High-Speed Steel with Cobalt)
• Cobalt content: 5%
• Diameter: 9.5 mm
• Overall length: 125 mm
• Working length (flute length): 87 mm
• Shank type: Cylindrical (straight shank)
• Shank diameter: 9.5 mm
• Point angle: 135°
• Point grind: Split point (cross-ground)
• Manufacturing process: Fully ground
• Surface finish: Bright (uncoated)
• Cutting direction: Right-hand cutting
• Tolerance: h8
• Recommended materials: Alloyed/unalloyed steel, stainless steel, cast iron, non-ferrous metals, plastics
• Heat resistance: High

Final note

A professional-grade cobalt drill bit built for precision and durability in tough metals.